
SuperMG
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Posts posted by SuperMG
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28 minutes ago, gluon said:
The RTX Turing cards are the latest with seemingly consistent eDP support, yes.
@SuperMG has done lots of testing on eDP with the Ada gen, see this thread for instance:
Hello. The ZRT and X-VSION cards are lacking something than the other pascal and Turing cards don't... Backlight support.
When I start my laptop, the backlight doesn't trigger once, which makes the display off and doesn't display anything beside having video signals on DP_D.
The Ampère cards on sale don't have eDP on DP_D, they have DP instead but could be transformed back to eDP if you mod.
DP and eDP have the same signals on MXM, DP_D_L lines, AUX and HPD.
Manufacturers for the Ada, they tested eDP signals with a DP out to an external monitor...
I contacted Developer79 and sent my 4070 MXM to him. We'll see if he can simple jump the pin 23 and 25 and make this GPU display on his Clevo P870 (which has the same MXM connector signals as mine).
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Hello.
I installed a 3080 in the AW18 R1 and the frames were so unstable. Not because of temps, it's because of the weird power throttling to 55W.
Like it does 110W then 55W then 110W... On every benchmarks. On the 3060, I didn't see any issues until sliderfra did some proper testing with the RTX 3060. He had the same bug as on the 3080.
He didn't found a way to get around the 55W instability bug.
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On 8/15/2025 at 11:59 AM, SuperMG said:
Hello.
ZRT compared both of my laptop's MXM connector schematic and their RTX 4060 MXM schematic. They are both compatible with the same signals and pins. So eDP on port D should 100% work on my display.
I tried to buy it but they said their PayPal is down? How am I gonna pay? I can't do a wire transfer because too much fees and not safe.
I tried using XOOM on PayPal it went thru but immediately it got cancelled and I got refunded...
If these companies want money, better sell on Alibaba..
EDIT: X-VSION AND ZRT HAVE THE SAME SCHEMATICS!!
So a ZRT card will behave like an X-Vsion card, no display!
Maybe... Because they both lack the PANEL backlight pins (3 of them, on pin 23, 25 and 27). Meanwhile these pins are present on my MXM connector..
If the backlight doesn't turn on, then there's no display because the screen is off, isn't that logical?
Hello, some following news.
ZRT will initiate a meeting about bringing "compatibility to laptops". That's good news, I don't know when I'll get their answers about that.
The representative understood my documentations and how we can get these cards to display on our eDP laptops. The VBIOS and the DP_D signals are eDP compatible but as mentioned before, the PANEL pins are N/A on their cards. Panel pins are needed to power on the eDP internal screen.
Second news, my RTX 4070 MXM from X-VSION has the same signal datasheet as the ZRT ones but the PCB is different.
It doesn't display on my laptop despite the DP_D and vbios being "eDP compatible".
I'll send my RTX 4070 to @Developer79, hopefully he can understand the PCB and enable the backlight. He has a P870 as an eDP laptop, this laptop has the same MXM connector pinouts as the P570, so that's good.
Special thanks to Developer79 again, Developer79 and ZRT are our only hope to get the newest MXM cards to work on our eDP laptops
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19 minutes ago, Developer79 said:
Please send me a schematic diagram of the cards you have! Link! I can check everything again.
Hello I already sent you everything in private message.
Also ZRT will initiate a meeting for the pin 23, 25 and 27, maybe hope.
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3 minutes ago, Developer79 said:
Yes, but everything is original in your project with the 4060 MXM. No, the pin assignment looks normal.
But... On the schematics it's says N/A on 3 of the pins.
Pin 25, has a missing component and it's for the PNL_BL_EN. I don't even know if the PWM pin is complete or no, I see some missing components next to it.
Pin 23 looks normal I guess?
If you're saying everything is normal, then why these type of cards like X-VSION, doesn't work with my eDP display? But the Quadro RTX 3000 from HP works...
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8 minutes ago, Developer79 said:
Hi,
thanks for your trust!
Yes, I'd be happy to test the card and help you!
Feel free to contact me!I mean I buy it for 620USD and ship it to you but you have to ship it back to me if you got the the eDP working on P870TM and any other old laptops with eDP as well.
I can pay you a little extra to fix these cards. Are you from Europe?
It's my only option if the manufacturer doesn't want to enable these 3 pins back or if they aren't willing to make full eDP compatibility for all laptops.
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Hello, if the manufacturer doesn't want to add the components.
I wanna buy the card and ship it to you so you can test and probably mod it so it can display on your P870TM. If it works, then it'll work on my laptop too.
What do you think?
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1 hour ago, Developer79 said:
You need to take a closer look at the back. Of course everything is routed. If it's routed, it works!
Hello here is a picture. (Updated picture)
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2 minutes ago, Developer79 said:
eDP pins are fixed, so the display power-on pins are also supported! You can see this in the pictures!
Yes the DP_D are fixed.
I looked and saw 3 pins on the back of the PCB. I hope these are the PANEL pins.
They have electrical lines but they are missing some IC and capacitors... I think the lines are here but not connected I suppose?
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7 minutes ago, Developer79 said:
You can forget that question.
But you can still ask for clarification.
The MXM specification has defined these pins!!!By question, you mean they won't make some custom wirings?
Yes these pins are on the specs, just that the manufacturer set them to N/A...
You can look up for en.zrt-tech online and look at the RTX 4060 MXM card, you can see the pins. I'm not to sure where to look at the physical pins (front or back of the PCB?, back?).
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10 minutes ago, Developer79 said:
Yes, clevo Crads have this Pins!
ZRT/X-VSION Ampère doesn't even have eDP signals and the PANEL pins but Clevo Ampère does have them...
Which means ZRT/X-VSION Ada cards could potentially enable back the PANEL pins so we can finally use these cards on eDP display (P570, P870).
I'm still waiting a reply from ZRT because they once told me, they can do some "custom wiring", I'm not sure, but let's wait.
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59 minutes ago, Developer79 said:
Hi,
Yes, you're right!
The adapter I developed also uses this pin assignment. I can control everything via jumpers on my board!
Pins 23/25 are simple jumpers for switching on, and pin 27 is pulse width modulated.
However, I found out during my tests that this pin is not necessary.In the picture, you can see how I have taken the PINs into account on my board!
Greetz
Yes but my screen is an eDP display, my Quadro P5200 and Quadro RTX 3000 have these pins I guess, otherwise that's why the RTX 4070 MXM doesn't work.
I don't see the screen powering on, on my laptop. However with a compatible card, first the screen backight powers on and then the video signal is out.
ZRT saw my messages but didn't even reply...
Does the RTX 3080 from clevo have these PANEL pins?
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17 minutes ago, janepa said:
Good point. These pins are important.
PNL_PWR _EN - enabling power source to LCD
PNL_BL_EN - on/off LCD
PNL_BL_PWM - pwm duty cycle
I think there isn´t nothing terrible to solve it. The first and second maybe will be a TTL logic so level high it is needed (1.8v-3.3v). PNL_BL_PWM - first i try 3.3v = 100% duty cycleThanks.
I asked ZRT if they can enable them. They did use these pins on their GTX 1070M and 1660TiM (even thought they don't have eDP)..
Here's where the pins are relied on my eDP conn.
PNL_PWR_EN for pin PLVDD
PNL_BL_PWM for pin PNL_BKLPWM
PNL_BL_EN for pin PANEL_EN
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On 8/18/2025 at 5:11 PM, Developer79 said:
Hello.
It's interesting because I'm trying to upgrade a Clevo P570WM laptop that has an eDP screen.
This PC can be upgraded max to the Turing generation GPU such as Quadro RTX 3000,4000,5000 from HP because it has eDP on port D on the master MXM.
And on the MXM slave connector, I have an RTX 4090 MXM.
Now what I'm trying to do, make the X-VSION/ZRT RTX 4060/4070 work on this laptop.
I looked at the schematics and saw that my mxm connector and the new cards have the same signals for DP_D, which is eDP signal.
It's all good but... There's one problem. While comparing the pins, I saw 3 pins that were related to PANEL.
23 PNL_PWR_EN
25 PNL_BL_EN
27 PNL_BL_PWM
These pins are for the backlight of the internal screen, so the eDP screen.
I suppose without them, I think the screen won't even power on despite having the right video signal on DP_D? Is that correct?
The ZRT/X-VSION 4060/4070 have the pins set to N/A, which means blank pins, no signal at all.
Does that mean, we have a working eDP signal but no backlight support? Any idea?
For reference, I tested the RTX 4070 from X-VSION on my laptop, it won't display anything on the screen but the computer boots to windows. I can connect to DP and HDMI and it displays on external screen.
My MXM connector is literally the same as the P870TM1 connector.
Ps: I'm also developing a new 175W MXM heatsink for the "centered offset GPUs" so my 4080 and 4090 won't throttle
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On 8/16/2025 at 10:54 PM, Maro97 said:
Thanks 🙏 @SuperMG for your updates
I will waiting your opinion for upgrading my p870 to ZRT 4090 .
“As for whether it is compatible or not
Hello, do you have a schematics for your eDP connector? Just to compare with mine.
Since you have the same MXM connector pins 23, 25, 27 as me
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MXM connector pins (not the eDP conn) the same as P570WM, P870, Zbook G5/G6 17
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4 minutes ago, sliderfra said:
it's panel Backlight PWM, should PWM is used on the LCD (quite seldom, unless it's OLED display)
Hello.
I compared the AETINA GTX 1060/1070 schematics and my MXM connector schematics.
They both have the
PNL_BL_EN
PNL_PWR_EN
PNL_BL_PWM
But on the ZRT/X-VSION cards they have them set to N/A.
Why? I'm sure they are needed. I looked at my eDP connector and I see the PANEL signals. (_EN and _PWM signals)
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On 8/18/2025 at 11:51 AM, janepa said:
I did look between my mxm connector and the ZRT 4060 signals and I again found something.
Are the pins 23, 25 and 27 important? Because on the ZRT RTX 4060 they are all in N/A
On my connector it's all PNL_ signals. (Like PNL_BL_EN)
Like does PNL_BL_PWM mean Panel Back Light PWN? Because X-VSION and ZRT are lacking it
What are these? Modulation clocks?
Some news: ZRT told me their Quadro A2000M and RTX 3050M are eDP compatible like the 4050/4060/4070... but on their specs, I see DP 1.4+, not eDP. Kinda strange no?
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7 minutes ago, janepa said:
Hi, good work on this . The RSVD pins are a reserved pins for additional equipment of electronics on GPU board, and thru these pins (3,3v) powering them in this case. Manufacturer strictly directions use of them, but not always at the same positions 240, 242 it can be on different pins like 235, 237 and so on. On some time ago i was trying to solve similar upgrade problem on Clevo P177SMA. The result is yes this pins are important ,but modification is not necesesary to be done on mxm side. The connection brigde it can be done on GPU board too. It´s nice to see how much people are interested about this problems and trying it to solved in. Thanks for your help, everyone. Let´s go and never give up.
ZRT told me these pins are for "IO ports", didn't specify me which ones.
And ZRT said they tested eDP on port D with normal DP...
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10 hours ago, SuperMG said:
Why are the LVDS and VGA pins on RSVD or N/A?
Hello.
X-vsion sent me their schematics and the the pins from 170 to 280 are the same as ZRT, they both have the same signals...
But the x-vsion eDP doesn't work on both of my laptops.
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14 hours ago, sliderfra said:
It's genuine MXM so 3.3V is mandatory, but you have it on the last pins.
As you can see on adlink AD5000 mxm, many pins are N/A (non applicable so non wired).
There are 4 DP lines but absolutely NO edp wired.
Most probably your RTX4k series are non wired either.
Turing & Ampere mxm cards don't have EDP wired either... That's why standard MXM RTX 3000 has to use OPTIMUS, whereas HP RTX can bring signal to edp screen.
If you look at the Intel Xe mxm pinout, you may see LVDS crossed (so most probably N/A) and EDP_D pins.
EGX-MXM-ADA_Series_50M_7C008_1000_10.pdf 1.9 MB · 1 download
Why are the LVDS and VGA pins on RSVD or N/A?
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2 hours ago, sliderfra said:
It's genuine MXM so 3.3V is mandatory, but you have it on the last pins.
As you can see on adlink AD5000 mxm, many pins are N/A (non applicable so non wired).
There are 4 DP lines but absolutely NO edp wired.
Most probably your RTX4k series are non wired either.
Turing & Ampere mxm cards don't have EDP wired either... That's why standard MXM RTX 3000 has to use OPTIMUS, whereas HP RTX can bring signal to edp screen.
If you look at the Intel Xe mxm pinout, you may see LVDS crossed (so most probably N/A) and EDP_D pins.
EGX-MXM-ADA_Series_50M_7C008_1000_10.pdf 1.9 MB · 0 downloads
The pdf you gave the DP_D is DP. It could work with eDP but you have to mod to bring the brightness. Without mods, eDP doesn't work for the cards in the pdf.
The RTX 4050/4060 from ZRT have eDP on port D but my lap doesn't have the 3V3 power for the pin 240 and 242
Red Nebula 3D 120Hz Alienware M17X R4 and Acer Predator Helios 500
in Notebooks and Desktops
Posted · Edited by SuperMG
Added a new laptop
Hello.
I'm selling an Alienware M17X R4 Red Nebula 120Hz eDP and an Acer Predator Helios 500 144Hz IPS with dual thunderbolt 3.0
Alienware M17X R4
The laptop is in a good shape with a working 120Hz 1080p 3D screen and good hinges.
Cleaned the keyboard, fans are cleaned, new thermal paste on both CPU and GPUs. I'll be testing the laptop before shipping.
CPU: I7 3740QM
RAM: 16GB DDR3 (2x8GB)
GPU: GTX 770M 3GB MXM
SSD: 128GB
CMOS battery: replaced
BIOS: Unlocked A15+
Screen: 1920x1080, 120Hz, 3D, WLED, EDP
Keyboard: 100% working, AZERTY
Battery: 99% health, working
Speakers: working
Webcam + microphone: working
USB + SD + Audio jacks: working
Wi-Fi + Bluetooth: working
Trackpad: works
RGB AlienFX system: 100% working
Optional: New Dell 240W AC Adapter included for 40€ more
Shipping to the EU: 39,90€
Shipping worldwide: 85€
Price: 530€ paypal
The graphics card could be upgraded to a GTX 1070, GTX 1080, Quadro P5200 MXM that supports eDP
or even to an RTX 3070 or RTX 4070 if you use an LVDS 1080p display with Intel Optimus.
Acer Predator Helios 500
CPU: Intel Core i7 8750H
RAM: 48GB DDR4
GPU: GTX 1070 8GB VRAM Mobile
Screen: 1080p 144Hz IPS eDP
Everything works, keyboard, screen, audio, webcam, usb and sd ports...
I didn't clean the inside but it looks clean externally.
230W adapter included
Original box and manuals included
Price : 399€ paypal